Add 84/18 and 75/60
1st number: 4 12/18, 2nd number: 1 15/60
84/18 + 75/60 is 71/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 60 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 18 × 10 = 180,
84/18 = 84 × 10/18 × 10 = 840/180 - Likewise, for the 2nd fraction, since 60 × 3 = 180,
75/60 = 75 × 3/60 × 3 = 225/180 - Add the two like fractions:
840/180 + 225/180 = 840 + 225/180 = 1065/180 - 1065/180 simplified gives 71/12
- So, 84/18 + 75/60 = 71/12
In mixed form: 511/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/36+75/60 84/54+75/60 84/90+75/60